GMAT Data Sufficiency (DS) Forum - Free Practice Questions

ER

Complete 1000 GMAT Data Sufficiency Series (DS-1000 Series) Questions

Bunuel

25 Oct 2022, 08:11

175

15

78,562

by: thisisakr

16 Apr 2026, 11:46

ER

100 Hardest and easiest questions for DS as of March 2026

1, 2

Bunuel

01 Jan 2026, 05:45

854

24

188,427

by: bumpbot

16 Sep 2025, 06:05

ER

DS Question Directory by Topic and Difficulty

bb

29 Aug 2025, 13:27

1.5k

0

487,773

by: bb

29 Aug 2025, 13:27

ER

An estimate of an actual data value has an error of p percent if p = |

805+ (Hard) | Arithmetic +2 tags

805+ (Hard) | Arithmetic, Percent and Interest Problems, Word Problems hide tags

parkhydel

28 Apr 2020, 05:06

615

18

48,501

by: Bunuel

25 Nov 2025, 04:37

ER

If a, b, c, d and e are integers and p=2^a3^b and q=2^c3

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

1, 2

enigma123

09 Jan 2012, 21:58

231

24

39,030

by: bumpbot

22 Nov 2025, 08:49

ER

On a certain nonstop trip, Marta averaged x miles per hour for 2 hours

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

26 Oct 2015, 09:48

220

14

55,270

by: bumpbot

19 Nov 2025, 09:21

ER

If x and yare positive integers , what is the remainder when

Sub 505 (Easy) | Exponents, Remainders

Sub 505 (Easy) | Exponents, Remainders hide tags

dzodzo85

20 Jun 2014, 02:14

132

14

25,209

by: bumpbot

16 Nov 2025, 03:53

ER

Can the positive integer n be written as the sum of two different posi

605-655 (Medium) | Number Properties

605-655 (Medium) | Number Properties hide tags

Bunuel

12 Feb 2014, 02:14

204

18

35,927

by: bumpbot

02 Nov 2025, 03:09

ER

If a and b are constants, is the expression (x + b)/(x + b)^(1/2)

505-555 (Easy) | Algebra

505-555 (Easy) | Algebra hide tags

Carcass

20 Jun 2020, 01:40

253

18

33,836

by: bumpbot

01 Nov 2025, 07:38

ER

Does the decimal equivalent of p/q, where p and q are positive integer

Sub 505 (Easy) | Fractions and Ratios

Sub 505 (Easy) | Fractions and Ratios hide tags

vaivish1723

15 Sep 2020, 07:29

125

19

42,578

by: bumpbot

28 Oct 2025, 04:28

ER

What percent of the students at University X are enrolled in a science

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

1, 2

randommbaguy

14 Aug 2024, 08:04

369

25

38,404

by: Ethan39

10 Oct 2025, 01:54

ER

How long did it take Betty to drive nonstop on a trip from h

555-605 (Medium) | Distance and Speed Problems

555-605 (Medium) | Distance and Speed Problems hide tags

Bunuel

05 Oct 2011, 03:59

154

15

32,119

by: bumpbot

07 Oct 2025, 01:26

ER

Guy's net income equals his gross income minus his deductions. By what

555-605 (Medium) | Percent and Interest Problems, Word Problems

555-605 (Medium) | Percent and Interest Problems, Word Problems hide tags

Bunuel

01 Oct 2012, 05:25

258

17

55,592

by: bumpbot

05 Oct 2025, 02:18

ER

Circle C and line K lie in the XY plane. If circle C is centered at th

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

vigneshpandi

02 Apr 2019, 03:36

168

15

42,299

by: Bunuel

02 Oct 2025, 09:50

ER

If x,y,and z are positive numbers,what is the value of the average (ar

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

1, 2

AbdurRakib

24 Jun 2017, 03:22

302

27

59,191

by: bumpbot

28 Sep 2025, 16:07

ER

If Car X followed Car Y across a certain bridge that is 1/2

Sub 505 (Easy) | Distance and Speed Problems

Sub 505 (Easy) | Distance and Speed Problems hide tags

1, 2

Bunuel

13 Aug 2012, 07:09

201

25

41,929

by: bumpbot

27 Sep 2025, 00:12

ER

What is the value of y? (1) 3|x^2 - 4| = y - 2 (2) |3 - y| = 11

655-705 (Hard) | Absolute Values

655-705 (Hard) | Absolute Values hide tags

prashantbacchewar

11 Sep 2023, 07:55

238

19

97,620

by: bumpbot

23 Sep 2025, 16:53

ER -1

If n is positive, is root(n) > 100 ?

555-605 (Medium) | Algebra +2 tags

555-605 (Medium) | Algebra, Inequalities, Roots hide tags

Bunuel

11 Jan 2011, 17:57

346

18

43,375

by: bumpbot

20 Sep 2025, 23:00

ER

In the sequence S of numbers, each term after the first two terms is

605-655 (Medium) | Sequences

605-655 (Medium) | Sequences hide tags

Bunuel

26 Feb 2014, 02:21

227

15

43,226

by: bumpbot

14 Sep 2025, 11:04

ER

From May 1 to May 30 in the same year, the balance in a

505-555 (Easy) | Percent and Interest Problems, Word Problems

505-555 (Easy) | Percent and Interest Problems, Word Problems hide tags

dkverma

25 Jan 2012, 11:55

223

17

38,381

by: bumpbot

11 Sep 2025, 01:36

ER

In the figure above, points A, B, C, D, and E lie on a line. A is on

655-705 (Hard) | Geometry

655-705 (Hard) | Geometry hide tags

Walkabout

05 Feb 2019, 23:15

343

13

68,112

by: bumpbot

10 Sep 2025, 10:48

ER

Beginning at noon yesterday, water was removed from a partially filled

805+ (Hard) | Word Problems

805+ (Hard) | Word Problems hide tags

raheelsn

19 Dec 2023, 05:51

133

13

17,351

by: Harshita2003

09 Sep 2025, 02:12

ER

If p, s, and t are positive integer, is |ps - pt| > p(s - t) ?

505-555 (Easy) | Absolute Values

505-555 (Easy) | Absolute Values hide tags

AJ1012

18 Dec 2015, 13:11

372

16

42,224

by: bumpbot

05 Sep 2025, 16:09

ER

What is the hundredths digit of the decimal z?

555-605 (Medium) | Fractions and Ratios

555-605 (Medium) | Fractions and Ratios hide tags

LM

05 Jun 2019, 04:23

464

14

86,054

by: bumpbot

04 Sep 2025, 21:55

ER

Is x an integer? (1) x^3 = 8 (2) x = 4^(1/2)

Sub 505 (Easy) | Algebra, Number Properties

Sub 505 (Easy) | Algebra, Number Properties hide tags

Bunuel

26 Apr 2019, 02:16

26

17

19,404

by: bumpbot

03 Sep 2025, 04:14

ER

If n is a positive integer and r is the remainder when n^2 - 1 is

555-605 (Medium) | Remainders

555-605 (Medium) | Remainders hide tags

YTT

28 Jul 2015, 06:52

92

16

27,713

by: ablatt4

28 Aug 2025, 08:53

ER

Is the square root of (x - 5)^2 = 5 - x ? (1) -x|x| > 0 (2) 5 - x > 0

605-655 (Medium) | Absolute Values, Inequalities

605-655 (Medium) | Absolute Values, Inequalities hide tags

1, 2

jjhko

13 Jan 2007, 11:52

334

21

53,700

by: bumpbot

21 Aug 2025, 12:08

ER

Line l lies in the xy-plane and does not pass through the origin. What

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

AbdurRakib

02 Jul 2021, 02:09

556

14

62,389

by: bhanu29

17 Aug 2025, 06:51

ER

If x/y > 2, is 3x + 2y < 18? (1) x - y is less than 2 (2) y - x is les

805+ (Hard) | Inequalities

805+ (Hard) | Inequalities hide tags

Hussain15

15 Jan 2010, 09:32

171

19

22,788

by: bumpbot

12 Aug 2025, 09:53

ER

What is the greatest common factor of x and y ?

555-605 (Medium) | Multiples and Factors, Number Properties

555-605 (Medium) | Multiples and Factors, Number Properties hide tags

1, 2

maryann

13 Feb 2011, 09:15

174

27

35,581

by: bumpbot

05 Aug 2025, 04:09

ER

Juana mailed at least one letter on each day last week. Was the total

605-655 (Medium) | Word Problems

605-655 (Medium) | Word Problems hide tags

Bunuel

07 Aug 2023, 10:00

134

16

26,865

by: agnivakolay

02 Aug 2025, 13:16

ER

If x and y are positive integers, is x a prime number?

805+ (Hard) | Absolute Values +2 tags

805+ (Hard) | Absolute Values, Algebra, Inequalities hide tags

bekerman

22 May 2014, 17:42

179

18

23,330

by: bumpbot

30 Jul 2025, 09:14

ER

In the rectangular coordinate system, are the points (r,s) and (u,v)

655-705 (Hard) | Coordinate Plane

655-705 (Hard) | Coordinate Plane hide tags

1, 2

calvinhobbes

06 Feb 2019, 04:09

318

20

42,324

by: bumpbot

19 Jul 2025, 16:28

ER

If x is an integer greater than 1, is x equal to the 12th

655-705 (Hard) | Exponents, Number Properties

655-705 (Hard) | Exponents, Number Properties hide tags

bhupi

23 Jun 2012, 10:44

440

18

49,612

by: bumpbot

18 Jul 2025, 05:55

ER

Is 4^(x + y) = 8^(10) ? (1) x - y = 9 (2) y/x = 1/4

555-605 (Medium) | Exponents

555-605 (Medium) | Exponents hide tags

Bunuel

18 Sep 2012, 03:19

168

17

55,072

by: bumpbot

17 Jul 2025, 08:55

ER

Reiko drove from point A to point B at a constant speed, and

805+ (Hard) | Distance and Speed Problems

805+ (Hard) | Distance and Speed Problems hide tags

1, 2

deepakrobi

31 Aug 2012, 19:02

560

24

56,812

by: bumpbot

17 Jul 2025, 02:00

ER

If 2 < x < 4, what is the median of the numbers 0, 5, x, 1,

555-605 (Medium) | Algebra, Statistics and Sets Problems

555-605 (Medium) | Algebra, Statistics and Sets Problems hide tags

1, 2

bgribble

30 Nov 2013, 11:54

170

23

49,987

by: bumpbot

06 Jul 2025, 10:58

ER

Suppose n children are going to sit, in any order, on a row of n chair

505-555 (Easy) | Combinations

505-555 (Easy) | Combinations hide tags

Bunuel

23 Feb 2015, 03:24

66

17

18,421

by: bumpbot

06 Jul 2025, 05:51

ER

If r > 0 and s > 0, is r/s < s/r? (1) r/(3s) = 1/4 (2) s = r + 4

Sub 505 (Easy) | Inequalities

Sub 505 (Easy) | Inequalities hide tags

cmugeria

17 Aug 2010, 09:02

158

14

48,727

by: bumpbot

30 Jun 2025, 08:52

ER

George has a total of B books in his library, 25 of which are hardcove

505-555 (Easy) | Overlapping Sets

505-555 (Easy) | Overlapping Sets hide tags

Bunuel

16 Jun 2016, 03:47

140

16

39,908

by: SillyCat

29 Jun 2025, 18:06

ER

Ellen can purchase a certain computer at a local store at th

655-705 (Hard) | Percent and Interest Problems, Word Problems

655-705 (Hard) | Percent and Interest Problems, Word Problems hide tags

SUNGMAT710

18 Jan 2015, 03:05

149

19

31,987

by: bumpbot

25 Jun 2025, 09:05

ER

If p, r, and s are consecutive integers in ascending order and x is th

555-605 (Medium) | Number Properties

555-605 (Medium) | Number Properties hide tags

Bunuel

26 Apr 2019, 02:19

194

17

30,426

by: bumpbot

24 Jun 2025, 15:01

ER

A paint mixture was formed by mixing exactly 3 colors of paint. By vol

655-705 (Hard) | Mixture Problems

655-705 (Hard) | Mixture Problems hide tags

Bunuel

26 Apr 2019, 03:18

306

16

46,734

by: Aboyhasnoname

24 Jun 2025, 01:02

ER

If a and b are two-digit positive integers greater than 10

805+ (Hard) | Remainders

805+ (Hard) | Remainders hide tags

1, 2

Bunuel

20 Jun 2014, 05:03

230

25

21,473

by: bumpbot

23 Jun 2025, 10:28

ER

What is the ratio of the average (arithmetic mean) height of

555-605 (Medium) | Statistics and Sets Problems

555-605 (Medium) | Statistics and Sets Problems hide tags

LADodgers

05 Nov 2004, 18:38

434

17

66,874

by: ManifestDreamMBA

21 Jun 2025, 02:11

ER

A sporting goods store received a shipment of baseball glove

805+ (Hard) | Overlapping Sets

805+ (Hard) | Overlapping Sets hide tags

thelosthippie

03 May 2013, 03:08

164

19

15,988

by: bumpbot

17 Jun 2025, 09:05

ER

Is 2x - 3y < x^2 ? (1) 2x - 3y = -2 (2) x > 2 and y > 0

655-705 (Hard) | Algebra, Inequalities

655-705 (Hard) | Algebra, Inequalities hide tags

metallicafan

10 Mar 2024, 09:55

258

14

40,917

by: Bunuel

08 Jun 2025, 10:07

ER

In the sequence shown, a_n=a_(n-1)+k, where 2<=n<=15 and k

705-805 (Hard) | Sequences

705-805 (Hard) | Sequences hide tags

mushyyy

23 Apr 2024, 00:50

691

19

79,304

by: BinodBhai

07 Jun 2025, 23:28

ER

Six countries in a certain region sent a total of 75 representatives

655-705 (Hard) | Min-Max Problems, Word Problems

655-705 (Hard) | Min-Max Problems, Word Problems hide tags

1, 2

LM

27 Apr 2010, 09:57

712

23

109,510

by: rak08

22 May 2025, 21:26

ER

Sets M and N contain exactly m and n elements, respectively.

555-605 (Medium) | Overlapping Sets

555-605 (Medium) | Overlapping Sets hide tags

1, 2

Lettherebelight

25 Mar 2016, 05:17

380

20

69,780

by: bumpbot

17 May 2025, 03:04

ER

If x^2+y^2=1, is x+y=1 ? (1) xy=0 (2) y=0

605-655 (Medium) | Algebra

605-655 (Medium) | Algebra hide tags

rraggio

17 May 2012, 01:19

27

18

30,589

by: bumpbot

23 Apr 2025, 01:17

ER

How many odd integers are greater than the integer x and

655-705 (Hard) | Number Properties

655-705 (Hard) | Number Properties hide tags

Orange08

06 Sep 2010, 13:09

381

18

73,561

by: bumpbot

21 Apr 2025, 21:30

ER

If m > 0 and n > 0, is (m + x)/(n + x) > m/n?

555-605 (Medium) | Inequalities

555-605 (Medium) | Inequalities hide tags

LM

03 Apr 2019, 21:35

213

16

32,606

by: bumpbot

21 Apr 2025, 20:39